Spherical particle sorting by using droplet deflection technology

Although the fundamental principle of a cell sorter is based on the ink jet printer, it has developed and retains own important technologies. By adopting some of such technologies, we have evolved our ink jet printing system to new fields such as to a particle sorting system. The adopted technologie...

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Bibliographic Details
Published in:Journal of electrostatics 1995-07, Vol.35 (1), p.3-12
Main Authors: Asano, Kazutoshi, Funayama, Yasuhiro, Tatsuzuka, Kyoko, Higashiyama, Yoshio
Format: Article
Language:English
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Summary:Although the fundamental principle of a cell sorter is based on the ink jet printer, it has developed and retains own important technologies. By adopting some of such technologies, we have evolved our ink jet printing system to new fields such as to a particle sorting system. The adopted technologies are the hydrodynamic focusing and optical detecting system of a particle within liquid flow. Experimental resutls revealed that hydrodynamic focusing of spherical particles is very effective for optical sensing of a particle. However, there seems to exist particle size limitation for inner jet diameter. If the size exceeds this limitation, the droplet forming at the breakup position becomes unstable. It was shown in experiments that four different sizes of particles can be sorted into four different collectors by using this sorting system.
ISSN:0304-3886
1873-5738
DOI:10.1016/0304-3886(95)00022-3